Image 2 Trends in Extreme Heat Events (IMAGE) American Geophysical Union Caption Trends in Extreme Heat Events (EHE), Extreme Cold Events (ECE), Relative Extreme Heat Events (REHE), and Relative Extreme Cold Events (RECE) in days per decade, 1980-2016. Dots indicate grid cells in which the trend is statistically significant (p<.05). Credit Scott Sheridan Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.